Delaware State History: From Colony to First State

Delaware's path from contested colonial territory to the first state in the American union spans roughly 150 years of European settlement, shifting imperial ambitions, and a single remarkable act of political urgency. This page covers the major periods of Delaware's history — from the earliest European contact through the ratification of the U.S. Constitution in 1787 — examining what drove each transition, who the key actors were, and why a small strip of land along the Atlantic coast ended up holding a place of permanent distinction in the American story. The full scope of Delaware's government, geography, and present-day institutions builds on foundations laid in this period.

Definition and scope

Delaware history, as covered here, refers to the documented record of the territory now comprising the state — approximately 2,489 square miles, making it the second-smallest state by area (U.S. Census Bureau, State Area Measurements) — from first European contact in 1609 through the constitutional ratification of December 7, 1787.

Scope and coverage limitations: This page addresses the colonial and founding period only. It does not cover post-ratification political history, 19th- or 20th-century developments, contemporary governance structures, or the internal workings of present-day state agencies. For demographic and economic context, see Delaware Population and Demographics and Delaware State Economy. Federal law and U.S. constitutional history fall outside the geographic scope of this page except where Delaware's specific ratification role is directly relevant.

Indigenous history predating European contact — particularly the Lenape people, who inhabited the region for millennia — is a subject of ongoing scholarship through sources including the Delaware Tribe of Indians and the Smithsonian's National Museum of the American Indian. That history is not adequately captured within the colonial framing used here, and readers are directed to those dedicated sources for fuller treatment.

How it works

The colonial period unfolded in three distinct phases, each defined by who controlled the territory and under what legal framework.

Phase 1 — Initial European Contact and Dutch Claim (1609–1638). Henry Hudson, sailing for the Dutch East India Company, entered Delaware Bay in 1609. The Dutch established a short-lived settlement called Zwaanendael near present-day Lewes in 1631; it was destroyed within a year following a conflict with local Lenape communities. The name "Delaware" itself derives from Thomas West, Lord De La Warr, the early Virginia governor — applied first to the bay, then to the river, and eventually to the entire territory.

Phase 2 — Swedish and Dutch Competition (1638–1664). In 1638, a Swedish expedition established Fort Christina at the site of present-day Wilmington — the first permanent European settlement in the Delaware Valley. New Sweden, as the colony was called, represented Sweden's only significant colonial venture in North America. It lasted 17 years before the Dutch, under Governor Peter Stuyvesant, seized the territory in 1655. Dutch rule itself lasted less than a decade.

Phase 3 — English Proprietary Control and the Penn Era (1664–1776). England seized the territory from the Dutch in 1664 as part of broader imperial consolidation along the eastern seaboard. In 1682, William Penn acquired the three lower counties — New Castle, Kent, and Sussex — from the Duke of York, primarily to secure access to the sea for his Pennsylvania colony. The region was known for most of this period as the "Lower Counties on the Delaware." In 1704, the three counties were granted their own assembly, functionally separating Delaware's governance from Pennsylvania while keeping the same proprietary governor — an arrangement that persisted until the Revolution.

Common scenarios

Three recurring patterns define how Delaware's colonial situation shaped its later identity.

  1. Boundary disputes as a constant. The Mason-Dixon Line survey (1763–1767), conducted by Charles Mason and Jeremiah Dixon, was commissioned specifically to resolve the territorial dispute between the Penn family's Pennsylvania/Delaware holdings and the Calvert family's Maryland. The twelve-mile circle drawn around New Castle — still visible on modern maps as Delaware's unusual northern boundary — was itself a negotiated compromise, not a geometric convenience.

  2. Small size, disproportionate legal sophistication. Because Pennsylvania and the Lower Counties shared governance infrastructure, Delaware's legal and administrative culture developed in close proximity to Philadelphia, then the most commercially active city in the colonies. This proximity seeded the tradition of legal and commercial expertise that would eventually make Delaware an outsized force in corporate law centuries later.

  3. Revolutionary ambivalence. Delaware's population in 1776 was divided. The colony sent Caesar Rodney, Thomas McKean, and George Read to the Continental Congress — but Read initially voted against independence. Rodney's famous overnight ride from Dover to Philadelphia on July 1–2, 1776, broke the Delaware delegation's deadlock and delivered a pro-independence vote. The distance covered was approximately 80 miles (Delaware Public Archives, Caesar Rodney Collection).

Decision boundaries

The most consequential single decision in Delaware's history came not during the Revolution but after it. On December 7, 1787, Delaware became the first state to ratify the U.S. Constitution, with a vote of 30 to 0 at a convention in Dover (National Archives, Charters of Freedom — Ratification). The unanimity was not accidental.

Delaware's delegates recognized that the new Constitution offered small states structural protection the Articles of Confederation did not — specifically, equal Senate representation regardless of population. A large-state-dominated union under proportional representation would have rendered Delaware permanently marginal. Equal Senate seats meant permanent relevance.

The contrast with larger states is instructive. Virginia, the most populous state at ratification, debated the Constitution for months and ratified in June 1788 by a narrow margin of 89 to 79. Delaware's delegation finished their deliberations in five days. The speed reflected consensus, not carelessness — and the title "First State" has been the cornerstone of Delaware's civic identity ever since, appearing on Delaware State Symbols including the state's license plates, where it has been displayed since 1971 (Delaware Division of Motor Vehicles).

For deeper context on the figures who shaped this period, see Delaware Notable Historical Figures. The constitutional framework that emerged from 1787 is examined at Delaware State Constitution.

References